I've just fitted a 3080ti, The PC is a Ryzen 3800x with 32gb of ram, running off an SSD (M.2 2280). Perhaps I wrongly expect to be able to get 60fps at 4k on ultra. I'm actually managing around 36fps with occasional stuttering. Dropping the resolution down to 2560x1440 is only giving me a couple of extra fps and again occasional stuttering. Nvidia drivers are up to date. Any ideas please?